diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index d12a7ee27..aa5c4378e 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -5,7 +5,7 @@ PR are always welcome, even if they only contain small fixes like typos or a few
 
 Please submit a PR broken down into small changes bit by bit. A PR consisting of a lot features and code changes may be hard to review. It is recommended to submit PRs in an incremental fashion.
 
-This [development guideline](https://kubeoperator.io/docs/dev/dev_manual/) contains information about repository structure, how to setup development environment, how to run it, and more.
+This [development guideline](https://1panel.cn/docs/dev_manual/dev_manual/) contains information about repository structure, how to setup development environment, how to run it, and more.
 
 Note: If you split your pull request to small changes, please make sure any of the changes goes to master will not break anything. Otherwise, it can not be merged until this feature complete.
 
@@ -22,4 +22,4 @@ When reporting issues, always include:
 * Snapshots or log files if needed
 
 Because the issues are open to the public, when submitting files, be sure to remove any sensitive information, e.g. user name, password, IP address, and company name. You can
-replace those parts with "REDACTED" or other strings like "****".
\ No newline at end of file
+replace those parts with "REDACTED" or other strings like "****".